Exam (elaborations)
Drinking Water Treatment – Qs And As (Rated A+)
- Course
- Institution
Drinking Water Treatment – Qs And As (Rated A+)
[Show more]
Seller
Follow
Studyhall
Reviews received
Content preview
Drinking Water Treatment – Qs And As (Rated A+)What is the first step for drinking water treatment? Correct Ans -
First Filtration
First Filtration Correct Ans - Water is filtered through screens that
remove fish leaves and trash.
What is the second step for drinking water treatment? Correct Ans -
Coagulation
Coagulation Correct Ans - Alum is added to form sticky flocs mud
bacteria and other particles stick to the flocs . The water and flocs then sink
into setting basins
What is the third step in drinking water treatment? Correct Ans -
Second filtration/sedimentation
What happens during second filtration? Correct Ans - The water
trickles down through sand and gravel which filters algae bacteria and
some chemicals out.
What is the fourth step in drinking water Correct Ans -
Chlorination
Chlorination Correct Ans - Chlorine is added to kill remaining
organism
What is the fifth step water treatment? Correct Ans - Aeration
Aeration Correct Ans - This is the process of forcing air through the
water to release gases which reduce unpleasant odors and taste.
What are additional treatments that community add to drinking water?
Correct Ans - Sodium or lime may be added to soften the walk hard
water and some communities at fluoride to help prevent tooth decay.
Central pump area/tank Correct Ans - After treatment this is where
the treated water is kept
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Studyhall. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now